The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 14, 1986
Filed:
Oct. 09, 1981
Karel C van Waveren, Nijmegen, NL;
Vredestein N.V., Velp, NL;
Abstract
A flexible tube for conveying a mixture of a liquid or solid material containing objects with sharp points, edges or similar projections, the internal wall part of said tube consisting of an elastic material, especially rubber, in which a wearproof material is present in the shape of rod-shaped elements which are provided essentially parallel and at a distance form one another in said internal wall part in such a way that they extend themselves between the inner and the outer surface of said internal wall part, the shortest distance between the most closely spaced wall parts of said elements being at least equal to the greatest dimension (D) of the rod-shaped elements as seen in the radial direction of said elements.